#!/bin/sh

# Trigger a segfault-inducing bug with -i in grep-2.14 on Cygwin.

# Copyright (C) 2013-2017 Free Software Foundation, Inc.

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <http://www.gnu.org/licenses/>.

. "${srcdir=.}/init.sh"; path_prepend_ ../src

require_en_utf8_locale_

require_compiled_in_MB_support

fail=0

printf '\360\220\220\205\n' > in || framework_failure_

LC_ALL=en_US.UTF-8

export LC_ALL

# On Cygwin, before grep-2.15, this would segfault.

# Require not just non-zero exit status, but exactly 1.

returns_ 1 grep -i anything-else in > out 2>&1 || fail=1

# Expect no output.

compare /dev/null out || fail=1

# Also test whether a surrogate-pair in the search string works.

for opt in '' -i -E -F -iE -iF; do

  grep --file=in $opt in > out 2>&1 || fail=1

  compare out in || fail=1

done

Exit $fail